Re: assume an integer
- To: mathgroup at smc.vnet.net
- Subject: [mg22456] Re: [mg22478] assume an integer
- From: BobHanlon at aol.com
- Date: Wed, 8 Mar 2000 02:21:54 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
{Cos[m*Pi], Sin[n*Pi]}
{Cos[m*Pi], Sin[n*Pi]}
Simplify[%, Element[{m, n}, Integers]]
{(-1)^m, 0}
Bob Hanlon
In a message dated 3/4/2000 3:47:37 AM, covenant at dirac.org writes:
>is it possible to have Mathematica assume a variable is an integer? i
>can't find an
>example in the Mathematica book (book is for 3.0, but i'm using 4.0).
>
>what i'm getting at is:
>Cos[m Pi] = (-1)^m
>Sin[n Pi] = 0
>